dyke vs patois

dyke and patois both are nouns.

Word	Noun	Adjective	Verb	Adverb
dyke	Yes	No	Yes	No
patois	Yes	No	No	No

dyke (noun)	patois (noun)
a barrier constructed to contain the flow of water or to keep out the sea	a regional dialect of a language (especially French); usually considered substandard
(slang) offensive term for a lesbian who is noticeably masculine	a characteristic language of a particular group (as among thieves)

dyke (verb)	patois (verb)
enclose with a dike